IDW11120
Australian Government Bureau of Meteorology
Western Australia
Issued at 1:01 am WST on Thursday 11 December 2025
for the period until midnight WST Saturday 13 December 2025.
Please be aware
Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.
A broad area of low pressure will persist through inland parts for the remainder of the week.
Winds: Variable about 10 knots. Seas: Below 1 metre. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm during the morning and afternoon.
Winds: West to southwesterly 10 to 15 knots becoming variable about 10 knots before dawn then becoming west to northwesterly 10 to 15 knots in the late evening. Seas: Below 1 metre. Swell: Westerly below 1 metre. Weather: Mostly sunny. The chance of a thunderstorm in the morning and afternoon.
Winds: Westerly 10 to 15 knots becoming variable about 10 knots during the morning. Seas: Below 1 metre. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm.
Winds: Variable about 10 knots. Seas: Below 1 metre. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm during this afternoon and evening.
Winds: Variable about 10 knots becoming westerly 10 to 15 knots in the early afternoon then decreasing to about 10 knots in the late evening. Seas: Below 1 metre. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm.
Winds: Variable about 10 knots. Seas: Below 0.5 metres. Swell: Westerly below 1 metre. Weather: Partly cloudy. The chance of a thunderstorm in the afternoon and evening.
Winds: Northerly 10 to 15 knots turning northwesterly during the morning and early afternoon. Seas: Below 1 metre. Swell: Westerly below 1 metre. Weather: Mostly sunny. The chance of a thunderstorm inshore this afternoon.
Winds: Northwesterly 10 to 15 knots, reaching up to 20 knots inshore during the afternoon and evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres inshore during the afternoon. Swell: Westerly below 1 metre. Weather: Mostly sunny. The chance of a thunderstorm east of Port Hedland in the morning and afternoon.
Winds: West to northwesterly 10 to 15 knots decreasing to about 10 knots during the evening. Seas: Around 1 metre. Swell: Westerly below 1 metre. Weather: Mostly sunny. The chance of a thunderstorm.
Winds: Southerly 15 to 20 knots tending southwesterly 10 to 15 knots in the middle of the day then tending northwest to southwesterly 15 to 20 knots in the early afternoon. Winds reaching up to 25 knots about offshore western waters in the evening. Seas: 1 to 1.5 metres, decreasing to 1 metre around midday, then increasing to 1 to 1.5 metres during the afternoon. Swell: West to southwesterly around 1 metre offshore. Weather: Sunny.
Winds: South to southwesterly 15 to 20 knots tending west to southwesterly in the middle of the day. Seas: Below 1 metre, increasing to 1 to 1.5 metres west of Barrow Island. Swell: West to southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres about offshore western waters. Weather: Sunny.
Winds: West to southwesterly 10 to 15 knots tending south to southwesterly during the morning then tending west to southwesterly 15 to 20 knots during the day. Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning. Swell: West to southwesterly around 1 metre offshore. Weather: Sunny.
The next routine forecast will be issued at 7:01 am WST Thursday.
* Calls to 1300 numbers cost around 27.5c incl. GST, higher from mobiles or public phones. Marine forecasts are also available on VHF and HF radio. View the radio schedule on www.bom.gov.au/marine
Check the latest Coastal Waters Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones